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No. 620,800. Patented Mar. 7, I899. J. POWLEY.

l N V A L D B E D (Application filed Aug. 8, 1898.)

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NITED STATES PATENT OFFICE.

JOSEPH POWVLEY, OF GALT, CANADA.

.lNVALlD-BED.

SPECIFICATION forming part of Letters Patent No. 620,800, dated March 7,1899.

Application filed August 8, 1398.

To all whom it ntay concern:

Be it known that I, JOSEPH POWLEY, mechanic, of the town of Galt, in thecounty of Waterloo and Province of Ontario, Canada, have inventedcertain new and useful Improvements in Invalid-Beds, of which thefollowing is a specification.

The object of my invention is to devise an invalid-bed of neatappearance and strong construction which will permit of any desiredposition being given the patient and which will permit him to be readilyswung on a stretcher while the clothes or mattress is changed; and itconsists, essentially, of such details of construction as arehereinafter more specifically described and then definitely claimed.

Figure 1 is a perspective view of my improved bed. Fig. 2 is across-section of the bed, partly in elevation, showing the bed partlyraised in full lines and completely raised in dotted lines. Fig. 3 is aperspective detail, partly broken away, showing more particularly theconstruction of the frame and the cord-operating rollers. Fig. 4 is aperspective detail of one of the end castings of the sides of the frame.Fig. 5 is a perspective detail showing the method of supporting andconstructing the winding-roller of the stretcher and of connecting thestretcher thereto.

In the drawings like letters of reference indicate corresponding partsin the diiferent figures.

A are the ends of the bed, to the posts of which are connected thecastings 13. Connecting these castings are the angle iron Crossbars O.Formed on the castings B are the lugs D, with holes a formed therein.

E are the end castings of the side rails F of the bed. These castingshave lugs G formedthereon provided with pins 17, adapted to enter theholes a. The castings E are made with inwardly oifset hooks H, which areadapted to pass through the holes e in the side rails F and engage theinner surface of the rails. XVhenthe castings have been connected to theend rails by engaging their hooks, as described,they may be securelyheld to the said rails by means of the screw-bolts cl. By making the endcastings detachable, as described, the side rails may be turned toSerial No. 688,086- (No modeh) permit of the fiat being lowermost, asshown, or uppermost, as is sometimes desirable. Resting upon the flat ofeach of the angleiron cross-bars O is a round rod J, forming a track.The ends of this bar are curved upwardly and are rigidly secured to thecastings B. Centrally connected to each of the crossbars 0 is a frame K,in which are journaled the rollers L, having intermeshing gear-pinions Hsecured thereto. With one of these pinions engages a spring-actuated dog6, which will permit of the free rotation of the gear in one direction,but will prevent its re volving backward till the dog is released byhand.

N are pulleys secured one at each end of each of the cross-bars O.

O is the frame of the spring-mattress, which is of ordinaryconstruction, with the exception that the ends of the cross-bars fthereof are extended beyond the side bars g to prevent end motion of theframe. Fingers f are also connected to the cross-bars to engage with theside posts of the ends of the bed to prevent side motion. From thecenter to the foot of the bed the side bars g are divided, and thesupplemental side bars g thus formed and hinged at h to the headportions of the side bars.

The woven-wire mattress P is connected to the frame 0 in any desiredmanner. Journaled in suitable bearings beneath the crossbars f are theblocks 71, upon the outer sides of which are pivoted the arms Q. Thelower ends of these arms have grooved rollers j journaled therein, whichare adapted to run upon the tracks J. Each arm has likewise a pulley Zsecured to its end.

Cords k are wound upon the rollers L. Each cord passes thence around oneof the pulleys N, around one of the pulleys Z upon one of the arms Q,and thence to the side of the frame of the bed, where it is secured. Thespindles of the rollers L pass through the frame K and are suitablyshaped to engage a crank-handle. Upon revolving the rollers by means ofsuch a crank-handle it is evident that the lower ends of the arms Q atthat end of the bed will be drawn outwardly, thus raising the end of thebed to which they are connected. If desired, either end of the mattressmay be raised, so as to give the whole of the bed a slope from the headdown toward the foot or from the foot down toward the head.

When it is desired to give the whole of the mattress a slant from thefoot toward the head, it is necessary that the side bars 9 and g besecurely locked together. Any form of catch may be used for thispurpose.

In Fig. 1 I show a rotatable hook we connected to each of the side barsg, which when its head is parallel with the side bars passes freelythrough the slot n in the supplemental side bar g, and, after beingpassed through, the hook may be turned crosswise, when the two bars willbe securely locked together.

If it be desired to raise the patient from the hips downward, the hooksm are disengaged, when the lower portion of the mattress may be raised,as shown in Fig. 1. hen the mattress has been so raised, the headportion may be raised also to any desired height. As it is possible whenthe ends of the mattress are in their lowest position for the pull ofthe cords to be in a line with the centers of the pulleys Z and thepivot-points of the arms Q, I prefer to connect to the cross-bars f,above each cord 70, an arm 0, having a pulley p journaled to its end,which presses down the portion of each cord is between the side of thebed and the pulley Z, as shown'in Fig. 1, to avoid the difficulty.

To afford means for cooling the patient or for changing the bedclothes Iprovide a stretcher. R, one end of which is securely attached to theroller S and the other provided with holes, so that it may be hookedupon the hooks r, secured to the roller T. This roller is journaledwithin bearings s, which are provided with lugs t, having holes formedtherein, by means of which they may be hooked upon the hooks to,connected to or formed upon the sides of the ends of the bed. The endsof the roller S are provided with similarlugs, which are hooked uponsimilar hooks at the other side of the bed. A hole is formed through oneend of the roller and through one of the bearings s, so that a pin maybe passed through it to hold the roller from rotating.

Vhen it is desired to place the patient upon the stretcher, the mattressis raised to its highest point, as shown in dotted lines in Fig. 2, andthe rollers S and Tare hooked upon the sides of the bed. The stretcher Ris then drawn beneath the patient and engaged with the hooks r on theroller T. This rolleris then revolved till the stretcher is tightened,when the pin U is inserted to prevent the stretcher unwinding. Themattress may now be lowered from beneath the patient and left to coolwhile the bedclothes are being changed.

WVhat I claim as my invention is 1. In an invalid-bed, a bed-frame andthe cross-bars thereof and a track supported on one of said cross-bars,in combination with a mattress-frame, arms pivoted beneath the end ofthe mattress-frame, and having their lower ends adapted to engage thetrack, pulleys on the frame, cordspassing around said pulleys andconnected to said arms, and means for winding said cords, thus movingthe lower .ends of the arms on the track, substantially as and for thepurpose specified.

2. In an invalid-bed a bed-frame and its cross-bars and a tracksupported on one of said cross-bars, and having its ends bentupwardly,in combination with a mattress-frame; arms pivoted beneath theend of the mattressframe, and having their lower ends adapted to engagethe track, and means for moving the lower ends of the arms on the track,substantially as and for the purpose specified.

3. In an invalid-bed a bed-frame and its cross-bars and a tracksupported on one 'of said cross-bars, in combination with amattress-frame; arms pivoted beneath the end of the mattress-frame, andhaving their lower ends adapted to engage the track; a pulley journaledat each side of the bed-frame; two rollers geared together and journaledat the center of the cross-bar; and a cord wound uponreach roller,passing around one of the pulleys on the bed-frame, around the pulley onthe end of one of the arms, and thence secured to the bed-frame,substantially as and for the purpose specified.

4. In an invalid-bed a bed-frame and its cross-bars and a tracksupported on oneof said cross-bars, in combination with amattress-frame; arms pivoted beneath the end of the mattress-frame, andhaving their lower ends adapted to engage the track; a pulley journaledat each side of the bed-frame; two rollers geared together and journaledat the center of the cross-bar; and a cord wound upon each roller,passing around one of the pulleys on the bed-frame, around the pulley onthe end of one of the arms, and thence secured to the bed-frame; an armconnected to the mattress-frame above the portion of each cord betweenits fixed point and the pulley on the arm, and having its end adapted toengage therewith, substantially as and for the purpose specified. 7

5. In an invalid-bed a bed-frame audits cross-bars and a track supportedon one of said cross-bars, in combination with a mattress-frame; armspivoted beneath the end of the mattress-frame, and having their lowerends adapted to engage the track; a pulley journaled at each side of thebed-frame; two rollers geared together and journaled at the center ofthe cross-bar; and a cord wound upon each roller, around the pulley onthe end of one of the arms, and thence secured to the bed-frame, and aspring-actuated pawl en gaging one of the gears on the rollers,substantially as and for the purpose specified.

6. In an invalid-bed, a bed-frame provided with corner-posts and trackssupported by cross-bars, in combination with a mattress frame having itsends shaped to engage the corner-posts to prevent longitudinal ortransverse motion; arms pivoted beneath the ends of the mattress-frame,and having their lower ICC end adapted to engage the tracks, pulleys onthe frame, cords passing around said pulleys and connected to said arms,and means for winding said cords, thus moving the lower ends of the armsupon the tracks, substantially as and for the purpose specified.

7. In an invalid-bed a bed-frame and its cross-bars having tracksthereon supported by said cross-bars; in combination with a mattressframe formed in two parts one hinged at one end to the center of theother; means for securing them together; arms pivoted beneath each partof the mattress-frame at the ends of the bed, and having their lower endadapted to engage the tracks, and means for moving the lower ends of thearms upon the tracks, the parts being constructed to move the wholemattress-frame or the hinged part thereof, substantially as and for thepurpose specified.

S. In an invalid-bed a bed-frame and its cross-bars having tracksthereon supported by said cross-bars, in combination with amattress-frame formed in two parts one hinged at one end to the centerof the other; means for securing the two parts together whereby the twoparts may be moved together or the hinged part by itself; arms pivotedbeneath each part of the mattress-frame at the ends of the bed, andhaving their lower end adapted to engage the tracks, and means formoving the lower ends of the arms upon the tracks, substantially as andfor the purpose specified.

0. In an invalid-bed a bed-frame provided with corner-posts and hookssecured thereto ing it on the hooks at one side of the bed; a

stretcher connected at one edge to the said roller and provided witheyes at its other edge; a roller provided with hooks to engage the saideyes and journaled in suitable bear ings; a hole in said roller adaptedto receive a locking-pin; and means for supporting the bearings from thehooks at the other side of the bed, substantially as and for the purposespecified.

10. In an invalid-bed a bed-frame and a track supported on one of thecross-bars thereof, and having 'its' ends bent upwardly, in combinationwith a mattress-frame; arms pivoted beneath the end of themattress-frame, and having their lower ends adapted to engage the track;a pulley journaled at each side of the bed-frame; two rollers gearedtogether and journaled at the center of the cross-bar and a cord woundupon each roller, passing around one of the pulleys on the bedframe,around the pulley on the end of one of the arms, and thence secured tothe bed-frame; an arm connected to the mattress-frame above the portionof each cord between its fixed point and the pulley on the arm, andhaving its end adapted to engage therewith, substantially as and for thepurpose specified.

Galt, August 2, 1898.

' JOSEPH POWVLEY.

In presence of C. MCNAUGHTEN, WM. S. TURNBULL.

